Abstract: A fluid spraying facility including a fluid circulation pipe and a scraper that can circulate in the pipe in order to push back the fluid present in the pipe as it moves forward, the pipe and the scraper each having a circular section, the pipe having an inner diameter, the scraper having an outer diameter, the outer diameter having a first value. A difference between the inner diameter of the pipe and the first outer diameter value of the scraper is greater than or equal to 100 micrometers, preferably greater than or equal to 200 micrometers.

Abstract: This method allows a coating product to be applied to a component (13) being moved by a conveyor (12), along which conveyor at least one spray (62.1, 62.2) is arranged.

Abstract: An application head of a coating product on a surface to be coated comprising at least two spray nozzles for the coating product, each spray nozzle suitable for spraying the coating product in the form of an aerosol stream, while simultaneously creating several droplets having a diameter smaller than the diameter of the outlet orifice of the spray nozzle.

Abstract: The invention relates to an automatic cleaning process, carried out during cleaning sequences during which all or at least part of an element to be cleaned is cleaned, each element to be cleaned being positioned inside a controlled atmosphere booth belonging to a coating facility. The cleaning sequences of the element(s) are programmed during imposed production stoppages of the facility. The invention also relates to a drying station, intended to be positioned inside a booth with a controlled atmosphere belonging to a coating facility, this drying station being dimensioned to receive all or part of a spraying robot, comprising a moving arm at the end of which a handle and a sprayer attached on the handle are provided.

Abstract: This electrostatic sprayer of coating products with external load, comprises a bowl rotatable about an axis, a turbine for rotating the bowl around this axis, and a plurality of first electrodes distributed around the axis and each capable of emitting, when the sprayer is operating and is at least partly in the direction on an object to be coated, a first ion flux from a first point. The first points are arranged in a first circle centered on and perpendicular to the axis. The sprayer comprises second electrodes each capable of emitting, when the sprayer is operating and mainly or exclusively in the direction of an edge of the bowl, a second ion flux, of the same sign as the first ion flux, from second points arranged in a second circle centered on and perpendicular to the axis, and having a different radius than the first circle.

Abstract: Rotating projector for a coating product including a spraying device having a circular spraying edge, driving means for driving the spraying device around a rotational axis, a body including primary openings arranged on a primary contour for ejecting primary air jets in a primary direction. The air jets having an axial component and an orthoradial component which are nonzero. The primary direction has a nonzero radial component, which is centrifugal relative to the rotation axis. Each primary jet extends along the rotational axis at a distance from the rotational axis than the radius of the spraying edge. The body includes secondary openings arranged on a secondary contour for ejecting the secondary air jets in a secondary direction having axial and centripetal radial components. The secondary jets hit an external surface of the spraying device. The contours coincide with a circle centered about the rotation axis.

Abstract: An application head of a coating product on a surface to be coated comprising at least two spray nozzles for the coating product, each spray nozzle suitable for spraying the coating product in the form of an aerosol stream, while simultaneously creating several droplets having a diameter smaller than the diameter of the outlet orifice of the spray nozzle.

Abstract: An electrostatic spray device for spraying a liquid coating product, including a rotating bowl and a device for driving the bowl around a rotational axis, the bowl defining a concave surface for distributing the coating product and an edge which limits an area for the spraying the coating product. The spray device includes an electrode that charges by ionization of drops of the coating product. The electrode is arranged, in relation to the edge and along the rotational axis, opposite the spray area, between the edge and the device for driving the bowl. A second electrode mounted on a stationary body allows the creation of an electrostatic field for transporting drops. A third electrode, which is also mounted on a stationary body, is brought to an intermediate potential between those of the first and second electrodes during the operation of the spray device.

Abstract: This method allows a coating product to be applied to a component (13) being moved by a conveyor (12), along which conveyor at least one spray (62.1, 62.2) is arranged.

Abstract: The invention relates to an automatic cleaning process, carried out during cleaning sequences during which all or at least part of an element to be cleaned is cleaned, each element to be cleaned being positioned inside a controlled atmosphere booth belonging to a coating facility. The cleaning sequences of the element(s) are programmed during imposed production stoppages of the facility. The invention also relates to a drying station, intended to be positioned inside a booth with a controlled atmosphere belonging to a coating facility, this drying station being dimensioned to receive all or part of a spraying robot, comprising a moving arm at the end of which a handle and a sprayer attached on the handle are provided.

Abstract: This electrostatic sprayer of coating products with external load, comprises a bowl rotatable about an axis, a turbine for rotating the bowl around this axis, and a plurality of first electrodes distributed around the axis and each capable of emitting, when the sprayer is operating and is at least partly in the direction on an object to be coated, a first ion flux from a first point. The first points are arranged in a first circle centred on and perpendicular to the axis. The sprayer comprises second electrodes each capable of emitting, when the sprayer is operating and mainly or exclusively in the direction of an edge of the bowl, a second ion flux, of the same sign as the first ion flux, from second points arranged in a second circle centred on and perpendicular to the axis, and having a different radius than the first circle.

Abstract: This sprayer gives the possibility of projecting a liquid coating product along a spraying axis, and comprises a first passage of a product sheet, which is centered on the spraying axis, and a second passage for ejecting an air sheet which co-axially surrounds the first passage. The sprayer further comprises a third passage for ejecting another air sheet which is co-axially positioned inside the first passage, a nozzle centered on the spraying axis, and a core, co-axially positioned inside the nozzle so that the first passage is defined between the core and the nozzle. The sprayer further comprises a vibrator which is capable of vibrating at least the nozzle or the core.

Abstract: The invention relates to a rotary projector for a coating product that comprises a spraying member (1) having at least one ridge (12) capable of forming a jet of product, a means for rotating the member (1), a stationary body (2) having primary (4) and secondary (6) openings formed on primary and secondary outlines surrounding the rotation axis (X1) of the member (1) and for respectively outputting primary and secondary air jets (J6). Each primary air jet is inclined relative to the rotation axis (X1) in a primary direction such that the primary air jet freely crosses the area where the ridge (12) is located, while each secondary air jet is inclined relative to the rotation axis (X1) in a secondary direction (J6) having at least one axial component (A6) and one radial component (R6), said components (A6, R6) being such that the secondary air jet (J6) impinges on an outer surface (13) of the spraying member (1).

Abstract: An electrostatic spray device for spraying a liquid coating product, including a rotating bowl and a device for driving the bowl around a rotational axis, the bowl defining a concave surface for distributing the coating product and an edge which limits an area for the spraying the coating product. The spray device includes an electrode that charges by ionisation of drops of the coating product. The electrode is arranged, in relation to the edge and along the rotational axis, opposite the spray area, between the edge and the device for driving the bowl. A second electrode mounted on a stationary body allows the creation of an electrostatic field for transporting drops. A third electrode, which is also mounted on a stationary body, is brought to an intermediate potential between those of the first and second electrodes during the operation of the spray device.

Abstract: Rotating projector for a coating product including a spraying device having a circular spraying edge, driving means for driving the spraying device around a rotational axis, a body including primary openings arranged on a primary contour for ejecting primary air jets in a primary direction. The air jets having an axial component and an orthoradial component which are nonzero. The primary direction has a nonzero radial component, which is centrifugal relative to the rotation axis. Each primary jet extends along the rotational axis at a distance from the rotational axis than the radius of the spraying edge. The body includes secondary openings arranged on a secondary contour for ejecting the secondary air jets in a secondary direction having axial and centripetal radial components. The secondary jets hit an external surface of the spraying device. The contours coincide with a circle centered about the rotation axis.

Abstract: The invention relates to a member (10) for spraying a coating product comprising a primary surface (20) for spreading the product and at least two secondary, inner (21) and outer (22) surfaces for spreading the product that extend downstream of the primary surface (20), the primary (20) and secondary (21, 22) surfaces being coaxial (X10-X10), the downstream portions of the secondary surfaces (21, 22) defining an inner spraying edge (23) and an outer spraying edge (24). The downstream portions (21b, 22b) of the secondary surfaces (21, 22) have, relative to one another, directions (A21, A22) that are overall divergent towards the downstream direction. The inner edge (23) has a diameter substantially smaller than the diameter of the outer edge (24).

Abstract: A station for reloading a sprayer is disclosed that includes a tank coupled to at least one coating material circuit by a coupler, a docking unit that is adapted to receive a sprayer; and at least one accumulator having a volume that is greater than or equal to the volume of the tank. Each accumulator is connected to at least one circuit by the coupler. The station also includes a mechanism for pressurizing the accumulator. The accumulator is connected to the docking unit which is, in turn, connected to the tank.

Abstract: The invention relates to a station (S) for reloading a sprayer (1) provided with a tank (10), said station comprising: a means (121) for coupling to at least one coating material circuit (70-79); a clamping unit (200) that defines an area (250) for receiving a sprayer (1); at least one accumulator (110, 120, 130, 140, 150), the volume of which is greater than or equal to the volume of the tank (10), each accumulator (110, 120, 130, 140, 150) being connected to at least one respective circuit (20, 70-79) by the coupling means (121; 170-179); means (125, 120.1, 120.2) for pressurizing the accumulator (110, 120, 130, 140, 150); means (121, 123-153) for connecting each accumulator (110, 120, 130, 140, 150) to the clamping unit (200); and a member (222) for connecting the clamping unit (200) to the tank (10).

Abstract: The invention relates to a rotary projector for a coating product that comprises a spraying member (1) having at least one ridge (12) capable of forming a jet of product, a means for rotating the member (1), a stationary body (2) having primary (4) and secondary (6) openings formed on primary and secondary outlines surrounding the rotation axis (X1) of the member (1) and for respectively outputting primary and secondary air jets (J6). Each primary air jet is inclined relative to the rotation axis (X1) in a primary direction such that the primary air jet freely crosses the area where the ridge (12) is located, while each secondary air jet is inclined relative to the rotation axis (Xl) in a secondary direction (J6) having at least one axial component (A6) and one radial component (R6), said components (A6, R6) being such that the secondary air jet (J6) impinges on an outer surface (13) of the spraying member (1).

Abstract: The invention relates to a member (10) for spraying a coating product comprising a primary surface (20) for spreading the product and at least two secondary, inner (21) and outer (22) surfaces for spreading the product that extend downstream of the primary surface (20), the primary (20) and secondary (21, 22) surfaces being coaxial (X10-X10), the downstream portions of the secondary surfaces (21, 22) defining an inner spraying edge (23) and an outer spraying edge (24). The downstream portions (21b, 22b) of the secondary surfaces (21, 22) have, relative to one another, directions (A21, A22) that are overall divergent towards the downstream direction. The inner edge (23) has a diameter substantially smaller than the diameter of the outer edge (24).